initially, in Asia, loose drawers or trousers, like those worn, tied towards waist, by Mohammedan both women and men; by extension, the same apparel adopted among Europeans, Americans, etc., for use in dressing room and during sleep; additionally, a suit composed of drawers and a loose upper apparel for these types of wear.

others:

Loose compartments or trousers, typically of silk or silk and cotton, tied up around the waist with a cord, utilized by both sexes in Asia, and adopted from Mohammedans by Europeans as a chamber apparel.